MEDIUM
CVE-2021-25252
CWE-400Published: March 3, 2021· Updated: Jun 17, 2026
5.5
CVSS v3.1
Official Description
Trend Micro's Virus Scan API (VSAPI) and Advanced Threat Scan Engine (ATSE) - are vulnerable to a memory exhaustion vulnerability that may lead to denial-of-service or system freeze if exploited by an attacker using a specially crafted file.
Technical Analysis
CVE-2021-25252 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Apple1 product(s)
macos
emc1 product(s)
celerra network attached storage
Linux1 product(s)
linux kernel
Microsoft1 product(s)
windows
netapp1 product(s)
cluster data ontap
novell1 product(s)
netware
trendmicro19 product(s)
apex centralapex onecloud edgedeep securitycontrol managerdeep discovery analyzerdeep discovery email inspectordeep discovery inspectorinterscan messaging security virtual applianceinterscan web security virtual applianceofficescanportal protect+7
Source: NVD CPE · 29 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://success.trendmicro.com/solution/000285675Patch · Vendor Advisory
→
https://success.trendmicro.com/solution/000285675Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2021-25252
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-400
CISA KEVNo
Affected7 vendor(s)
PublishedMar 3, 2021
Related CVEs (CWE-400)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-25252 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.